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1. Objective
2
1. Objective
4
1. Objective
Ground Station
ADS-B
5
ADS-B
1. Objective
1. In orbit demonstration of ADS-B
detection
1. Characterize “Cone of Silence”
(when aircraft are at the nadir);
1. Receiver figures of merit:
•“Probability of Target Acquisition”
•“Probability of Detection”
•“Probability of Identification”
Ground Station
ADS-B
ADS-B
UHF Downlink
“Store and forward” approach
Movement direction
6
2. Cubesat
7
8
9
Status
● RF: preliminary design and component selection
completed
● Baseband: Initial simulation of algorithms on FPGA
● Testing: HAB campaign performed to collect ADS-B
baseband data @ 30 km to be use for fine tuning
algorithms
Decoded
messages
RF Front Ent
ADC FPGA
ADS-B RECEIVER
2. Payload
Future
● ADS-B receiver tuning, production and testing in HAB
Status
● Rectangular patch preliminary simulation and
prototype
Future
● Antenna design refinement, simulation,
fabrication and testing
● Anechoic measurement, Characterization of
interference
● Integration
ADS-B ANTENNA
10
2. Subsystems
11
2. Timeline
12
3. High Altitude Balloon
Testing
13
Possibilities:● Test range of ADS-B Receiver.
● Test Communication links.
● Test electronic in near-space conditions of temperature,
pressure and radiation.
3. High Altitude Balloon
14
3. High Altitude Balloon
17
3. High Altitude Balloon
18
3. High Altitude Balloon
19
3. High Altitude Balloon
20
3. High Altitude Balloon
22
4. Sponsoring Opportunities
24
4. Sponsors Wanted!
25
Thank you
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